How to find intersted Investors for my Business Idea ?

I have a Business Idea and wish to Start it as soon as possible. My Business idea will be based on Design, Architecture, Entertainment, Hospitality, Architecture, Art and Design and lot more into one. I have my Business plan and idea clear. But to successfully start this business I will need huge Investment. Please help me out how to contact and find interested companies or individuals who will be interested to invest in such a project.